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<div class="header">
  <div class="headertitle"><div class="title">float.h</div></div>
</div><!--header-->
<div class="contents">
<a href="float_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * SPDX-License-Identifier: BSD-3-Clause</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> */</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#ifndef _PICO_FLOAT_H</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="preprocessor">#define _PICO_FLOAT_H</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="preprocessor">#include &lt;<a class="code" href="float_8h.html">float.h</a>&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="preprocessor">#include &quot;<a class="code" href="pico_8h.html">pico.h</a>&quot;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="preprocessor">#include &quot;pico/bootrom/sf_table.h&quot;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">// None of these functions are available on RISC-V:</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="preprocessor">#if !defined(__riscv) || PICO_COMBINED_DOCS</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="keywordtype">float</span> int2float(int32_t f);</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="keywordtype">float</span> uint2float(uint32_t f);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="keywordtype">float</span> int642float(int64_t f);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="keywordtype">float</span> uint642float(uint64_t f);</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="keywordtype">float</span> fix2float(int32_t m, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="keywordtype">float</span> ufix2float(uint32_t m, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="keywordtype">float</span> fix642float(int64_t m, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="keywordtype">float</span> ufix642float(uint64_t m, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment">// These methods round towards -Infinity.</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>int32_t float2fix(<span class="keywordtype">float</span> f, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>uint32_t float2ufix(<span class="keywordtype">float</span> f, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>int64_t float2fix64(<span class="keywordtype">float</span> f, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>uint64_t float2ufix64(<span class="keywordtype">float</span> f, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>int32_t float2int(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>uint32_t float2uint(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>int64_t float2int64(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>uint64_t float2uint64(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment">// These methods round towards 0.</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>int32_t float2int_z(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>int64_t float2int64_z(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>int32_t float2uint_z(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>int64_t float2uint64_z(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="keywordtype">float</span> exp10f(<span class="keywordtype">float</span> x);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="keywordtype">void</span> sincosf(<span class="keywordtype">float</span> x, <span class="keywordtype">float</span> *sinx, <span class="keywordtype">float</span> *cosx);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="keywordtype">float</span> powintf(<span class="keywordtype">float</span> x, <span class="keywordtype">int</span> y);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="preprocessor">#if !PICO_RP2040 || PICO_COMBINED_DOCS</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>int64_t float2fix64_z(<span class="keywordtype">float</span> f, <span class="keywordtype">int</span> e);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="keywordtype">float</span> fdiv_fast(<span class="keywordtype">float</span> n, <span class="keywordtype">float</span> d);</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="keywordtype">float</span> fsqrt_fast(<span class="keywordtype">float</span> f);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>}</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="afloat_8h_html"><div class="ttname"><a href="float_8h.html">float.h</a></div></div>
<div class="ttc" id="apico_8h_html"><div class="ttname"><a href="pico_8h.html">pico.h</a></div></div>
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